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User Manual

prr PULSE REPETITION RATE, the inverse number of the time interval between two

contiguous acoustic pulse (unit: Hz)

TIB BONE THERMAL INDEX, a thermal index for a focal zone formed near a bone

after the ultrasound beam passes through soft tissue, e.g. applied to a fetus (2nd

or 3rd trimester) or to the head of a neonate (through the fontanel) (unit: N/A)

TIC CRANIAL BONE THERMAL INDEX, a thermal index for an ultrasound beam

entering the body and passing through a bone, e.g. skull of children or adults

(unit: N/A)

TIS

scan

Soft tissue thermal index in scanning mode (unit: N/A)

TIS

non-scan

Soft tissue thermal index in non-scanning mode (unit: N/A)

PULSE DURATION (unit: us)

_at_max_Ipi,α The location where PULSE-INTENSITY INTEGRAL is maximal (unit: cm)

DEPTH FOR BONE THERMAL INDEX (unit: cm)

BREAK-POINT DEPTH, which is EQUIVALENT APERTURE DIAMETER multiplied by

1.5 (unit: cm)

DEPTH FOR SOFT-TISSUE THERMAL INDEX, the distance from a plane where the

product of minimum attenuated output power, ATTENUATED SPATIAL-PEAK

TEMPORAL-AVERAGE INTENSITY, and 1cm

is maximal at the distance range

that is equal to, or greater than, the equivalent aperture diameter multiplied

by 1.5, when the beam dimension of -12dB output is dened along the beam

alignment axis (unit: cm)

 Acoustic Measurement Precision and Uncertainty

The Acoustic Measurement Precision and Acoustic Measurement Uncertainty are described below.

Quantity Precision Total Uncertainty

Ipi,α (attenuated pulse intensity integral)

3.2% +21% to -24%

P (acoustic power)

6.2% +/- 19%

r,α

(attenuated rarefaction pressure)

5.4% +/- 15%

awf

(acoustic working frequency)

< 1% +/- 4.5%

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Samsung PT60A Bedienungsanleitung Seite 48